Piezoelectric cable and wire harness using the same

Details Piezoelectric cable and wire harness using the same Piezoelectric cable and wire harness using the same

1997-10-30

1999-05-25

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 41087

Patent

active

059072130

ABSTRACT:
The present invention provides a low-cost piezoelectric cable and wire harness using the same, which offer a high connection reliability without picking up interference signals in areas where the cable acts as a sensor. Coaxial piezoelectric cable 10 has a piezoelectric material layer 14 disposed between a core conductor 12 and an outer conductor 16. Piezoelectric material layer 14 is polarized and shows piezoelectric properties in a region 20 which extends along a window frame 2 of an automobile, but is not polarized, and therefore shows no piezoelectric properties, in a region 22 in which it is not desired that the cable act as a sensor. Accordingly, there is no pick-up of false signals in the region 22.

REFERENCES:
patent: 2834943 (1958-05-01), Grisdale et al.
patent: 3820208 (1974-06-01), Baldy
patent: 3831162 (1974-08-01), Armstrong
patent: 4629925 (1986-12-01), Booth et al.
patent: 4695988 (1987-09-01), Banno
patent: 5275885 (1994-01-01), Ogura
patent: 5432498 (1995-07-01), Zilbershtein et al.
patent: 5486820 (1996-01-01), Chatigny et al.
United Kingdom Search Report, dated Feb. 9, 1998.

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